Bleeding canker on European beech (Fagus sylvatica)
Photo Gallery
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P. cactorum bleeding canker  |
Dying Port Orford Cedar trees  |
P. pluvialis sporangium  Sporangia showing typical ovoid shape and semi-papillate condition |
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P. austrocedrae - Mal del ciprés in Argentina  Mal del ciprés looking toward Rio Grande, Chubut Province, Argentina |
P. cinnamomi cork oak decline  Cork oak decline, Portugal |
Comparative gametangial morphology of Phytophthora Clade 5 species  Comparative gametangial morphology of Phytophthora Clade 5 species, with SEM (top) and light microscopy (bottom). P. heveae has smooth walled oogonia with funnel-shaped, amphigynous antheridia. P. agathidicida has mildly stipulate oogonia with globose amphigynous antheridia. P.cocois has mildly bullate oogonia with reflexed amphigynous antheridia. P. castaneae has coarsely bullate oogonium with rugose protuberances and narrow amphigynous antheridia (Weir et al. 2015). |
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P. megakarya sporangium  Caducous papillate sporangium of P. megakarya |
P. agathidicida oospores  Oospores of P. agathidicida in the roots of kauri seedlings inoculated with P. agathidicida. The root has been cleared with potassium hydroxide and bleached with peroxide, before being stained with Trypan Blue |
P. cambivora sporangium  Ovoid non-papillate sporangia with well-rounded base and simple sporangiophore |
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P. cambivora oogonium  Bullate oogonium and and two-celled amphigynous antheridium |
P. cinnamomi on Banksia  Gretna Weste injecting Banksia with phosphonate |
Healthy Port Orford Cedar tree  Healthy Chamaecyparis lawsoniana trees |